| Primary Identifier | MGI:3653477 | Allele Type | Targeted |
| Attribute String | Conditional ready, Modified regulatory region, No functional change | Gene | Rr164 |
| Transmission | Germline | Strain of Origin | 129P2/OlaHsd |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A targeting vector was designed to insert loxP sites to flank a 4 kb sequence immediately upstream of the KI-KII element (Rr163), encompassing the promoter of the long J-C K germline transcript. |